1/*
2 * $Id: timebox.c,v 1.69 2020/11/23 09:04:00 tom Exp $
3 *
4 *  timebox.c -- implements the timebox dialog
5 *
6 *  Copyright 2001-2019,2020   Thomas E. Dickey
7 *
8 *  This program is free software; you can redistribute it and/or modify
9 *  it under the terms of the GNU Lesser General Public License, version 2.1
10 *  as published by the Free Software Foundation.
11 *
12 *  This program is distributed in the hope that it will be useful, but
13 *  WITHOUT ANY WARRANTY; without even the implied warranty of
14 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15 *  Lesser General Public License for more details.
16 *
17 *  You should have received a copy of the GNU Lesser General Public
18 *  License along with this program; if not, write to
19 *	Free Software Foundation, Inc.
20 *	51 Franklin St., Fifth Floor
21 *	Boston, MA 02110, USA.
22 */
23
24#include <dlg_internals.h>
25#include <dlg_keys.h>
26
27#include <time.h>
28
29#define ONE_HIGH 1
30#define ONE_WIDE 2
31#define BTN_HIGH 2
32
33#define MIN_HIGH (ONE_HIGH + BTN_HIGH + (4 * MARGIN))
34#define MIN_WIDE ((3 * (ONE_WIDE + 2 * MARGIN)) + 2 + (2 * MARGIN))
35
36typedef enum {
37    sHR = -3
38    ,sMN = -2
39    ,sSC = -1
40} STATES;
41
42struct _box;
43
44typedef struct _box {
45    WINDOW *parent;
46    WINDOW *window;
47    int x;
48    int y;
49    int width;
50    int height;
51    int period;
52    int value;
53} BOX;
54
55static int
56next_or_previous(int key)
57{
58    int result = 0;
59
60    switch (key) {
61    case DLGK_ITEM_PREV:
62	result = -1;
63	break;
64    case DLGK_ITEM_NEXT:
65	result = 1;
66	break;
67    default:
68	beep();
69	break;
70    }
71    return result;
72}
73/*
74 * Draw the hour-of-month selection box
75 */
76static int
77draw_cell(BOX * data)
78{
79    werase(data->window);
80    dlg_draw_box(data->parent,
81		 data->y - MARGIN, data->x - MARGIN,
82		 data->height + (2 * MARGIN), data->width + (2 * MARGIN),
83		 menubox_border_attr, menubox_border2_attr);
84
85    dlg_attrset(data->window, item_attr);
86    wprintw(data->window, "%02d", data->value);
87    return 0;
88}
89
90static int
91init_object(BOX * data,
92	    WINDOW *parent,
93	    int x, int y,
94	    int width, int height,
95	    int period, int value,
96	    int code)
97{
98    (void) code;
99
100    data->parent = parent;
101    data->x = x;
102    data->y = y;
103    data->width = width;
104    data->height = height;
105    data->period = period;
106    data->value = value % period;
107
108    data->window = dlg_der_window(data->parent,
109				  data->height, data->width,
110				  data->y, data->x);
111    if (data->window == 0)
112	return -1;
113
114    dlg_mouse_setbase(getbegx(parent), getbegy(parent));
115    dlg_mouse_mkregion(y, x, height, width, code);
116
117    return 0;
118}
119
120static int
121CleanupResult(int code, WINDOW *dialog, char *prompt, DIALOG_VARS * save_vars)
122{
123    dlg_del_window(dialog);
124    dlg_mouse_free_regions();
125    free(prompt);
126    dlg_restore_vars(save_vars);
127
128    return code;
129}
130
131#define DrawObject(data) draw_cell(data)
132
133/*
134 * Display a dialog box for entering a date
135 */
136int
137dialog_timebox(const char *title,
138	       const char *subtitle,
139	       int height,
140	       int width,
141	       int hour,
142	       int minute,
143	       int second)
144{
145    /* *INDENT-OFF* */
146    static DLG_KEYS_BINDING binding[] = {
147	DLG_KEYS_DATA( DLGK_DELETE_RIGHT,KEY_DC ),
148	HELPKEY_BINDINGS,
149	ENTERKEY_BINDINGS,
150	TOGGLEKEY_BINDINGS,
151	DLG_KEYS_DATA( DLGK_FIELD_FIRST,KEY_HOME ),
152	DLG_KEYS_DATA( DLGK_FIELD_LAST, KEY_END ),
153	DLG_KEYS_DATA( DLGK_FIELD_LAST, KEY_LL ),
154	DLG_KEYS_DATA( DLGK_FIELD_NEXT, CHR_NEXT ),
155	DLG_KEYS_DATA( DLGK_FIELD_NEXT, KEY_RIGHT ),
156	DLG_KEYS_DATA( DLGK_FIELD_NEXT, TAB ),
157	DLG_KEYS_DATA( DLGK_FIELD_PREV, CHR_BACKSPACE ),
158	DLG_KEYS_DATA( DLGK_FIELD_PREV, CHR_PREVIOUS ),
159	DLG_KEYS_DATA( DLGK_FIELD_PREV, KEY_BTAB ),
160	DLG_KEYS_DATA( DLGK_FIELD_PREV, KEY_LEFT ),
161	DLG_KEYS_DATA( DLGK_ITEM_NEXT,  '+'),
162	DLG_KEYS_DATA( DLGK_ITEM_NEXT,  KEY_DOWN),
163	DLG_KEYS_DATA( DLGK_ITEM_NEXT,  KEY_NEXT),
164	DLG_KEYS_DATA( DLGK_ITEM_NEXT,  KEY_NPAGE),
165	DLG_KEYS_DATA( DLGK_ITEM_PREV,  '-' ),
166	DLG_KEYS_DATA( DLGK_ITEM_PREV,  KEY_PPAGE ),
167	DLG_KEYS_DATA( DLGK_ITEM_PREV,  KEY_PREVIOUS ),
168	DLG_KEYS_DATA( DLGK_ITEM_PREV,  KEY_UP ),
169	END_KEYS_BINDING
170    };
171    /* *INDENT-ON* */
172
173#ifdef KEY_RESIZE
174    int old_height = height;
175    int old_width = width;
176#endif
177    BOX hr_box, mn_box, sc_box;
178    int key, fkey;
179    int button;
180    int result = DLG_EXIT_UNKNOWN;
181    WINDOW *dialog;
182    time_t now_time;
183    struct tm current;
184    int state = dlg_default_button();
185    const char **buttons = dlg_ok_labels();
186    char *prompt;
187    char buffer[MAX_LEN];
188    DIALOG_VARS save_vars;
189
190    DLG_TRACE(("# timebox args:\n"));
191    DLG_TRACE2S("title", title);
192    DLG_TRACE2S("message", subtitle);
193    DLG_TRACE2N("height", height);
194    DLG_TRACE2N("width", width);
195    DLG_TRACE2N("hour", hour);
196    DLG_TRACE2N("minute", minute);
197    DLG_TRACE2N("second", second);
198
199    now_time = time((time_t *) 0);
200    current = *localtime(&now_time);
201
202    dlg_save_vars(&save_vars);
203    dialog_vars.separate_output = TRUE;
204
205    dlg_does_output();
206
207#ifdef KEY_RESIZE
208  retry:
209#endif
210
211    prompt = dlg_strclone(subtitle);
212    dlg_auto_size(title, prompt, &height, &width, MIN_HIGH, MIN_WIDE);
213
214    dlg_button_layout(buttons, &width);
215    dlg_print_size(height, width);
216    dlg_ctl_size(height, width);
217
218    dialog = dlg_new_window(height, width,
219			    dlg_box_y_ordinate(height),
220			    dlg_box_x_ordinate(width));
221
222    if (hour >= 24 || minute >= 60 || second >= 60) {
223	return CleanupResult(DLG_EXIT_ERROR, dialog, prompt, &save_vars);
224    }
225
226    dlg_register_window(dialog, "timebox", binding);
227    dlg_register_buttons(dialog, "timebox", buttons);
228
229    dlg_draw_box2(dialog, 0, 0, height, width, dialog_attr, border_attr, border2_attr);
230    dlg_draw_bottom_box2(dialog, border_attr, border2_attr, dialog_attr);
231    dlg_draw_title(dialog, title);
232    dlg_draw_helpline(dialog, FALSE);
233
234    dlg_attrset(dialog, dialog_attr);
235    dlg_print_autowrap(dialog, prompt, height, width);
236
237    /* compute positions of hour, month and year boxes */
238    memset(&hr_box, 0, sizeof(hr_box));
239    memset(&mn_box, 0, sizeof(mn_box));
240    memset(&sc_box, 0, sizeof(sc_box));
241
242    if (init_object(&hr_box,
243		    dialog,
244		    (width - MIN_WIDE + 1) / 2 + MARGIN,
245		    (height - MIN_HIGH + MARGIN),
246		    ONE_WIDE,
247		    ONE_HIGH,
248		    24,
249		    hour >= 0 ? hour : current.tm_hour,
250		    'H') < 0
251	|| DrawObject(&hr_box) < 0) {
252	return CleanupResult(DLG_EXIT_ERROR, dialog, prompt, &save_vars);
253    }
254
255    mvwprintw(dialog, hr_box.y, hr_box.x + ONE_WIDE + MARGIN, ":");
256    if (init_object(&mn_box,
257		    dialog,
258		    hr_box.x + (ONE_WIDE + 2 * MARGIN + 1),
259		    hr_box.y,
260		    hr_box.width,
261		    hr_box.height,
262		    60,
263		    minute >= 0 ? minute : current.tm_min,
264		    'M') < 0
265	|| DrawObject(&mn_box) < 0) {
266	return CleanupResult(DLG_EXIT_ERROR, dialog, prompt, &save_vars);
267    }
268
269    mvwprintw(dialog, mn_box.y, mn_box.x + ONE_WIDE + MARGIN, ":");
270    if (init_object(&sc_box,
271		    dialog,
272		    mn_box.x + (ONE_WIDE + 2 * MARGIN + 1),
273		    mn_box.y,
274		    mn_box.width,
275		    mn_box.height,
276		    60,
277		    second >= 0 ? second : current.tm_sec,
278		    'S') < 0
279	|| DrawObject(&sc_box) < 0) {
280	return CleanupResult(DLG_EXIT_ERROR, dialog, prompt, &save_vars);
281    }
282
283    dlg_trace_win(dialog);
284    while (result == DLG_EXIT_UNKNOWN) {
285	BOX *obj = (state == sHR ? &hr_box
286		    : (state == sMN ? &mn_box :
287		       (state == sSC ? &sc_box : 0)));
288	int key2;
289
290	button = (state < 0) ? 0 : state;
291	dlg_draw_buttons(dialog, height - 2, 0, buttons, button, FALSE, width);
292	if (obj != 0)
293	    dlg_set_focus(dialog, obj->window);
294
295	key = dlg_mouse_wgetch(dialog, &fkey);
296	if (dlg_result_key(key, fkey, &result)) {
297	    if (!dlg_button_key(result, &button, &key, &fkey))
298		break;
299	}
300
301	if ((key2 = dlg_char_to_button(key, buttons)) >= 0) {
302	    result = key2;
303	} else {
304	    /* handle function-keys */
305	    if (fkey) {
306		switch (key) {
307		case DLGK_MOUSE('H'):
308		    state = sHR;
309		    break;
310		case DLGK_MOUSE('M'):
311		    state = sMN;
312		    break;
313		case DLGK_MOUSE('S'):
314		    state = sSC;
315		    break;
316		case DLGK_TOGGLE:
317		case DLGK_ENTER:
318		    result = dlg_enter_buttoncode(button);
319		    break;
320		case DLGK_LEAVE:
321		    result = dlg_ok_buttoncode(button);
322		    break;
323		case DLGK_FIELD_PREV:
324		    state = dlg_prev_ok_buttonindex(state, sHR);
325		    break;
326		case DLGK_FIELD_NEXT:
327		    state = dlg_next_ok_buttonindex(state, sHR);
328		    break;
329		case DLGK_FIELD_FIRST:
330		    if (obj != 0) {
331			obj->value = 0;
332			(void) DrawObject(obj);
333		    }
334		    break;
335		case DLGK_FIELD_LAST:
336		    if (obj != 0) {
337			switch (state) {
338			case sHR:
339			    obj->value = 23;
340			    break;
341			case sMN:
342			case sSC:
343			    obj->value = 59;
344			    break;
345			}
346			(void) DrawObject(obj);
347		    }
348		    break;
349		case DLGK_DELETE_RIGHT:
350		    if (obj != 0) {
351			obj->value /= 10;
352			(void) DrawObject(obj);
353		    }
354		    break;
355#ifdef KEY_RESIZE
356		case KEY_RESIZE:
357		    dlg_will_resize(dialog);
358		    /* reset data */
359		    height = old_height;
360		    width = old_width;
361		    hour = hr_box.value;
362		    minute = mn_box.value;
363		    second = sc_box.value;
364		    /* repaint */
365		    free(prompt);
366		    _dlg_resize_cleanup(dialog);
367		    goto retry;
368#endif
369		default:
370		    if (is_DLGK_MOUSE(key)) {
371			result = dlg_ok_buttoncode(key - M_EVENT);
372			if (result < 0)
373			    result = DLG_EXIT_OK;
374		    } else if (obj != 0) {
375			int step = next_or_previous(key);
376			if (step != 0) {
377			    obj->value += step;
378			    while (obj->value < 0)
379				obj->value += obj->period;
380			    obj->value %= obj->period;
381			    (void) DrawObject(obj);
382			}
383		    }
384		    break;
385		}
386	    } else if (isdigit(key)) {
387		if (obj != 0) {
388		    int digit = (key - '0');
389		    int value = (obj->value * 10) + digit;
390		    if (value < obj->period) {
391			obj->value = value;
392			(void) DrawObject(obj);
393		    } else {
394			beep();
395		    }
396		}
397	    } else if (key > 0) {
398		beep();
399	    }
400	}
401    }
402
403#define DefaultFormat(dst, src) \
404	sprintf(dst, "%02d:%02d:%02d", \
405		hr_box.value, mn_box.value, sc_box.value)
406
407#if defined(HAVE_STRFTIME)
408    if (dialog_vars.time_format != 0) {
409	size_t used;
410	time_t now = time((time_t *) 0);
411	struct tm *parts = localtime(&now);
412
413	parts->tm_sec = sc_box.value;
414	parts->tm_min = mn_box.value;
415	parts->tm_hour = hr_box.value;
416	used = strftime(buffer,
417			sizeof(buffer) - 1,
418			dialog_vars.time_format,
419			parts);
420	if (used == 0 || *buffer == '\0')
421	    DefaultFormat(buffer, hr_box);
422    } else
423#endif
424	DefaultFormat(buffer, hr_box);
425
426    dlg_add_result(buffer);
427    AddLastKey();
428
429    return CleanupResult(result, dialog, prompt, &save_vars);
430}
431